A building site has been evacuated after a large number of mortar shells were found in a storage cage.

Staffordshire Police tweeted a picture showing dozens of rusting shell casings after the discovery in Chasetown, near Burntwood, at about 8.20am on Thursday.

We are currently at the scene of a building site in Chasetown, Burntwood, following the discovery of a large number of mortar shells. We are advising people to stay away from the area and thank everyone for their patience and cooperation. https://t.co/6GHppbMvTxpic.twitter.com/ibIFS4Lxl0